/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

Wicket.Event.add(window, 'domready', function() {

	var es = new EventSource(eventSourceReferenceUrl);

	es.addEventListener('message', function ( evt ) {
		if (evt.data) {
			var data = JSON.parse(evt.data);
			if (typeof(data.counter) !== "undefined") {
				document.getElementById('counter').innerText = data.counter;
			}
		}
	});

	es.onerror = function ( evt ) {
		// to stop from the server side we need to cause an error
		// by using wrong Content-Type and error status code
		es.close();
	};

	Wicket.Event.add('stop', 'click', function() {
		es.close();
	});

});
